291657280

素因数分解:

$2^6\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1319}}^1$

素因数の和:2027

約数の個数: 56

約数和(自身を含む): 696041280

約数和(自身を除く): 404384000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 691, 1319, 1382, 2638, 2764, 3455, 5276, 5528, 6595, 6910, 10552, 11056, 13190, 13820, 21104, 22112, 26380, 27640, 42208, 44224, 52760, 55280, 84416, 105520, 110560, 211040, 221120, 422080, 911429, 1822858, 3645716, 4557145, 7291432, 9114290, 14582864, 18228580, 29165728, 36457160, 58331456, 72914320, 145828640, 291657280]

約数ペア:

[(1, 291657280), (2, 145828640), (4, 72914320), (5, 58331456), (8, 36457160), (10, 29165728), (16, 18228580), (20, 14582864), (32, 9114290), (40, 7291432), (64, 4557145), (80, 3645716), (160, 1822858), (320, 911429), (691, 422080), (1319, 221120), (1382, 211040), (2638, 110560), (2764, 105520), (3455, 84416), (5276, 55280), (5528, 52760), (6595, 44224), (6910, 42208), (10552, 27640), (11056, 26380), (13190, 22112), (13820, 21104)]